kamailio 4.3.4-1.1ubuntu1 (amd64 binary) in ubuntu xenial

 Kamailio is a very fast and flexible SIP (RFC3261)
 proxy server. Written entirely in C, Kamailio can handle thousands calls
 per second even on low-budget hardware.
 .
 C Shell-like scripting language provides full control over the server's
 behaviour. Its modular architecture allows only required functionality to be
 loaded.
 .
 This package contains the main Kamailio binary along with the principal
 modules and support binaries.